Coach couch is building a dollhouse for his niece. the house is 3 3/8 yard tall and the roof is 2 3/4 yard tall. how tall will the dollhouse be when the roof is attached.

Pj is decorating pupcakes for rocky's birthday party. her color scheme is black, purple, and green. she will use this spinner to determine the color of sprinkles on each pupcake. which model shows the probability of randomly landing on each color?

Achemist has 200 ml of a 10% sucrose solution. she adds x ml of a 40% sucrose solution. the percent concentration, y, of the final mixture is given by the rational function: the chemist needs the concentration of the final mixture to be 30%. how many milliliters of the 40% solution should she add to the 10% solution to get this concentration?

What are the solutions to the equation 4x2+3x=24-x